php - Call to a member function on a non-object on modify -


i trying update value try set returns error

error: call member function setpguid() on non-object in d:\xampp\htdocs\symfony\src\cq\intranetbundle\controller\defaultcontroller.php line 19

this code defaultcontroller , since copied symfony2 docs have not slightest id might wrong.

class defaultcontroller extends controller {      public function indexaction() {         $em = $this->getdoctrine()->getmanager();         $karte = $em->getrepository('cqintranetbundle:karte')->findbypguid('00f8e77c-d8c2-4c7f-8e4a-384cc7689da0');          if (!$karte) {             throw $this->createnotfoundexception(                     'no product found id '             );         }          $karte->setpguid('new product name!');         $em->flush();     }  }

also if a

exit(\doctrine\common\util\debug::dump($karte));

it returns this

array(1) {   [0]=>   object(stdclass)#497 (9) {     ["__class__"]=>     string(30) "cq\intranetbundle\entity\karte"     ["pguid"]=>     string(36) "00f8e77c-d8c2-4c7f-8e4a-384cc7689da0"     ["pbarcode"]=>     string(13) "3321231140001"     ["panreise"]=>     string(8) "datetime"     ["pabreise"]=>     string(8) "datetime"     ["pmguid"]=>     string(36) "07b7c4cf-3441-4339-9b3c-1a581e1271ba"     ["pdatecreate"]=>     string(8) "datetime"     ["pdatemodify"]=>     string(8) "datetime"     ["pdateaccess"]=>     string(8) "datetime"   } }

according documentation:

http://symfony.com/doc/current/book/doctrine.html

you using method returns array, no matter how many results return.

in example, may return 1 result, since key using unique.

in case can use:

$karte = $em->getrepository('cqintranetbundle:karte')->findbypguid('00f8e77c-d8c2-4c7f-8e4a-384cc7689da0')[0];

which directly point $karte first (and only) object array.

the same result achieve using method returns 1 result, previous answerer pointed findoneby...()


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